monitors are designed exclusively for gamers, featuring higher refresh rates and improved response times at the expense of a lower resolution. E-sports, or competitive gamers, often favor higher framerates at the expense of reduced color accuracy, preferring TN panels over IPS panels. Interface There are many hardware interfaces designed specifically for gaming. Such interfaces include keyboards and mice built for gaming (these typically include additional keys or buttons for game-related functions as well as LCD screens, higher sensitivity (for mice), lower input latency, higher durability (structural and more switch actuations before breaking), better adherence (for keyboards and mice) and less/more friction depending on the user's needs), joysticks, gamepads, steering wheels, PC-compatible airplane gauges and panels, etc. A keyboard and mouse is the preferred control method for most games, giving the best speed and accuracy. Touch screens are rarely used for PC gaming at this point. "Haptic feedback" commonly known as force feedback, allows for greater immersion in games played. While there are no keyboards that support haptic feedback, some mice and most forms of game controllers do. Networking While typical computers, including high-end systems, tend to use wireless connections to connect to other computers as well as a router, gaming PCs often use Ethernet cables for the fastest and most reliable connection possible. Some companies sell dedicated network cards to reduce lag in multiplayer games. A dial-up Internet connection is not an acceptable solution due to the very high latency (~400ms is common). Mobile broadband connections can also cause the same undesirable effects as dial-up connections, but can be considered less substantial, with latency of or exceeding 150ms, less than 100ms being desirable in a first-person shooter. Performance and benchmarks As a general guideline, enthusiast PCs must achieve high scores on 3D benchmarks such as 3DMark when first built or upgraded. Enthusiasts who understand how to overclock sometimes do so to prolong the usefulness of their hardware. The highest results are always achieved by overclocking. However, synthetic benchmark results rarely equate to real application performance, as measured by framerate. The framerate is measured in frames per second, which refers to the number of times the video card recalculates the image shown on screen. While framerates above 60 FPS (standard NTSC framerate) become increasingly difficult to distinguish with the human eye, enthusiast PCs with a multi-video card setup often boast framerates in excess of 100 FPS. To maintain a challenge, the